Portable heat welding machine



FIG. 1 is a perspective view of the portable heat welding machine of thepresent invention.

FIG. 2 is a front elevational view of the portable heat welding machine.

FIG. 3 is a rear elevational view of the portable heat welding machine.

FIG. 4 is a top plan view of the portable heat welding machine.

FIG. 5 is a bottom plan view of the portable heat welding machine.

FIG. 6 is a left end elevational view of the portable heat weldingmachine; and,

FIG. 7 is a right end elevational view of the portable heat weldingmachine.

CLAIM The ornamental design for a portable heat welding machine, asshown and described.